| 释义 |
{{Infobox road
|country=JPN
|type=National
|route=456
|maint=
|alternate_name=国道456号
|map=
|length_km=154.5
|length_round=
|length_ref=
|established=
|direction_a=
|terminus_a=
|junction=
|direction_b=
|terminus_b=
|browse=
}}National Route 456 is a national highway of Japan connecting Morioka, Iwate and Motoyoshi, Miyagi in Japan, with a total length of 154.5 km (96 mi). {{commonscat|Route 456 (Japan)}}{{Japan-road-stub}} 1 : National highways in Japan |